Flexible document case



FIG. 1 is a front elevational view of a flexible document case showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a perspective view thereof in open position. 

The ornamental design for a flexible document case, as shown. 